agenttesla | d1c344f6235301f1e7da7c9b0ff6464f2f9e20ed9a0e8d8c178199d644c69912

General

Target

items 001.xlsm.exe
Size

488KB
MD5

35f182cd6015448d90271bae97b6e48e
SHA1

f1bd8aa2087b48458741afb60529b39c3b167034
SHA256

6f5b0135a9800946845f48fdd84ab322ca4c4c5c1efcb79fcf82969f76099886
SHA512

7b6e3d4ed0cab1d8e61d972ddefe0dd72c95bb49c680b9e42fda65907bd708d792c47c853d80e969230fd1600e11bdc62f22e9c9d302732f680fdd5c47fe3f29

Score

10^/10

agenttesla collection coreentity keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.pptoursperu.com
Port:
587
Username:
[email protected]
Password:
mailppt2019-

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

CoreEntity .NET Packer 1 IoCs

A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

coreentity

Processes:

resource	yara_rule
behavioral1/memory/1800-56-0x00000000003C0000-0x00000000003C8000-memory.dmp	coreentity

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1344-61-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1344-62-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1344-63-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1344-64-0x000000000044BE5E-mapping.dmp	family_agenttesla
behavioral1/memory/1344-66-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla
behavioral1/memory/1344-68-0x0000000000400000-0x0000000000450000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1800-57-0x0000000004860000-0x00000000048B8000-memory.dmp	rezer0

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

items 001.xlsm.exe

description pid process target process

PID 1800 set thread context of 1344 1800 items 001.xlsm.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

1344 RegSvcs.exe
1344 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1344 RegSvcs.exe

description	pid	process	target process
PID 1800 set thread context of 1344	1800	items 001.xlsm.exe	RegSvcs.exe

pid	process
1344	RegSvcs.exe
1344	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1344	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

items 001.xlsm.exe

description	pid	process	target process
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe
PID 1800 wrote to memory of 1344	1800	items 001.xlsm.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\items 001.xlsm.exe
"C:\Users\Admin\AppData\Local\Temp\items 001.xlsm.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1800

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1344

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/1344-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1344-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1344-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1344-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1344-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1344-64-0x000000000044BE5E-mapping.dmp

Download
memory/1344-66-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1344-68-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1800-54-0x0000000001300000-0x0000000001380000-memory.dmp

Filesize
512KB

Download
memory/1800-55-0x0000000074E91000-0x0000000074E93000-memory.dmp

Filesize
8KB

Download
memory/1800-56-0x00000000003C0000-0x00000000003C8000-memory.dmp

Filesize
32KB

Download
memory/1800-57-0x0000000004860000-0x00000000048B8000-memory.dmp

Filesize
352KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads